Jeff and David are right on the money. You really ought not let it concern you in the slightest.
About a week ago I walked into the combination photo studio and camera store operated by my local pro (Nikon dealer). There are usually a couple of folks seated at the counter having a cup of coffee with the owner, usually with some very expensive cameras also on the counter.
That day was no exception. I noticed one guy had a Nikon and the other had brought a Canon. Both were
huge, with battery grips attached and sporting what looked to be some very expensive lenses. I'm guessing that these two put their money into top-of-the-line equipment.
They jumped up and ran over like schoolgirls doing the pee-pee dance when they saw what I was carrying:
As if they weren't surprised enough at seeing such a refugee from the trash heap.....imagine how much more surprised they were when I opened it up, fished out a roll of film, and handed it over to be developed.
I informed them that it cost about three dollars, requires a squirt of lighter fluid into the shutter mechanism before I take it out to shoot, and that as beat up and battered as it is....it still takes photos of a most stunning quality.
I gave them a sort of philosophical point to ponder by telling them, "Look...this thing is such a piece of junk that I don't
expect it to take good pictures, so when I do get something good out of it, my joy is just all that much greater."
The owner told one guy who is in the same camera club with him that I'll be joining the club at the next meeting (February). His reaction? "Oh, sh*t." I guess he thought that it must be either my only or my regular camera. He said it in a very "There goes the neighborhood" way.
So take your Pentax along and take full advantage of the leverage the smug crowd's low expectations provides you. You know it can take great photos. And I know it can take great photos. They, on the other hand, are about to find out.
What sort of results does the bare-metal, beaten, battered, half-century old, three dollar scrapheap refugee turn in? Let's just say I wouldn't be in the least ashamed to use this camera in a photography class.
And please do permanently delurk yourself and join in the general uproar. Post some photos, too. We'd all be glad to see them.